<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../js/vue.js"></script>
</head>
<body>
  <div id="app">
    <select name="" v-model="fruit">
        <option value="苹果">苹果</option>
        <option value="梨子">梨子</option>
        <option value="葡萄">葡萄</option>
        <option value="西瓜">西瓜</option>
    </select>
    <p>{{fruit}}</p>
    <br>

    <select name="" v-model="fruits" multiple>
        <option value="苹果">苹果</option>
        <option value="梨子">梨子</option>
        <option value="葡萄">葡萄</option>
        <option value="西瓜">西瓜</option>
    </select>
    <p>{{fruits}}</p>

  </div>
<br>
  <script>
    let app = new Vue({
      el:"#app",
      data:{
           fruit:'苹果',
           fruits:[]
       }
     })
   </script>
</body>
</html>